Collapsible rim.



TIMOTHY S. YORK, HAVERHILL, MASSACHUSETTS, ASSIGNOR TO'LOUIS H.' HARM-- MAN, OF HAVERHILL, MASSACHUSETTS, TRUSTEE FOR SAID YORK, VT.` SGOllfllll IPETERS, SAMUEL E. CASS, AND IFRANK M. WHITEHOUSE, ALL 0F HAVEB :ll'lyl MASSACHUSETTS.

`Leterme.

`GOLLAI?51131313 RIM.

Patented June a, rare.

Application led December 28, 1.917. Serial No.` 209,223.

To all lwhom t may concern.' y

Be it known that I, TIMOTHY S. YORK, a citizen of the United States, and a resident of Haverhill', county of Essex, and State of Massachusetts, have invented an Improvement in Collapsible Rims, of which the following is a specification.

This invention relates toy certain improvements in collapsible, demountable rims and more particularly to improvements on the particular type of -rim disclosed in my pendv 111g application, Serial #137295 in whicha complemental rim section 'is connected to theV main portion of the rim by a link, which is locatedrwithin the main rimportion, said. complemental section and link acting as lav4 toggle to force apart theends of the sections of the main rim portion with which the ends of the complemental section abut, outward' movement of the toggle beyond the 'normal position being prevented by the overlying f portion of the rim, which also prevents inward pressure on its-outer periphery from forcing the toggle inward. l

The object of the present vinvention is to improve the construction of said rim, so that it may be constructed at substantially less,

expense than the construction previously disclosed by me, and so that the material of which .the rim is constructed may be produced by' arolling process, thereby avoiding the use of castings and, to a large extent, the

necessity of machine Work, at the same time increasing the strength and durability of the rim. v

I accomplish this object by providing a vtire-receiving outer rim of ordinary form,

and a Hat inner rim of .uniform width and thickness, which is disposed on the inner p eriphery of the outer rim, said outer and inner rims being formed in corresponding section with Vabutting ends, and the rim portions of each lsection being permanently secured to-4 gether,I said sections being connectedby pivotal connections between the adjacent `ends of the inner rim sections.

For a more complete understanding of my invention, reference is made to the acconipanying drawing in which:-

Figure 1 is a sideelevatlon of a demountable rim made according to my invention.

' Fig. f2 is a similar view, showing the rim in completely collapsed form.

Fig. 3 is a cross sectional view of the rim,

ery and an inner rim of uniform thickness an of the same width as the inner peri herall surface of the outer rim, the latter being secured thereto, at certain points, as hereafter explained, by rivets or otherpermanent securing means extending throu h both rims, as indicated in Fig. 3. The run is divided into two main rim sections and a complemental section, as vin my previously disclosed construction. v

According to my present invention, said main sections comprise outer rim-portionsV a and Z), each of which extends throughout nearly a semi-circumference, .and said complemental section comprises an louter rim portion' c, which completes the rim, When the ends of said rim portions are abutted. -An inner ri'm section m is riveted to the inner periphery of the section and extends from a point removed 'from the end of the latter` next the section c to apoint removed `from the end next the section b, and an inner rim section n is riveted to the inner periphery of the section b and extends from a point removed from the end of the latterv next the section c to a point beyond the vopposite end of the section b, where it 'meets the adjacent end of the inner section m, said meetin ends of the sections m and n being provid' with a 'corresponding tongue and recess and pivotally connected by a pivot e, as shown in Figs. 6 and 7, so that the extended. the rim-section n overlaps the joint between the sectionse and b.

The complemental section chas an inner rim section o riveted to its inner side, which extends throughout the lengthand beyond each end of said section c, the extending end portion o thereof beingI adapted to meet the adjacent end of the section n when the adjacent ends of the sections band c are are detail views of one of the the adjacent end of the section m, the comf loinedv length .ot the end portion o2 and secadjacent end ofsection u.

tion 4g, loe'ing equal to the distance which' said end of section m is removed from the rlhe pivot h is arranged to permit the section g to swing inward andthepivot y' is arranged to permit the section o to' swing outward with relation to section g, said sections thus forming the two members of a toggle. The meeting faces of the sections'a and b and of the sections b and c are approximately square or radial and those of the sections a' and c are oblique, or 'somewhat inclined toward `the pivot y', as shown. The meeting ends of the section. 'a and extension 0 are preferably correspondingly rounded and Accessed, to provide pivotal bearingsuraces and the extension o has a rectangular shaped projection or ing' p pivoted to its side next the section t and the end portion of the latter is provided with a correspondingly shaped aperture o', said lug and aperture being relatively arranged so that the one enters the other, when the sections b and c are in their normal relative positions and will act' to I lock said section against longitudinal separation and prevent the abutting end portions of said sections` from being inoved trans versely one with relation to the other. A similar projection g and a corresponding \aperture in the adjacent outer rim portion a,

may be provided on thelink g to relievev the pivot'h from transverse strain.

. The manner of collapsing the rim to' per mit the tire to be placed thereon, and of stretching the tire thereon, after it has been placed 1n position, is identical to that described With relation to my previous construction, that is, when the parts are in the collapsed position of Fig. 2, and the tire has been placed thereon, the end portion 0 of the rim section o is placed against the adjacent end of section n, as in the dotted line position of Fig. l, and then the toggle, thus formed, is pressed outward at its joint or pivot j until the adjacent ends of sections a and b are pressed apart and the section c is forced therebetween, at Which time the link g Will be forced against the adjacent inner peripheral surface of the section a, as shown I in full lines in Fig. l.. In moving the parts to this position, the center of the'toggle, which is at the cen-ter of pivot j, will pass the line of centers from pivot L to the end of extension 0', so that tension on the tire, tending to'swing thefsettions a and Z1 together, will merely press the link g agains the inner side of the end portion of section incenso a. To ixillapseA the rim, it isV merely necessary to force the joint of the toggle inward past the line of centers Where the togle is straight, and then the parts may be readily moved to the position of Fig. S3.

From the foregoing description, it will be apparent that the enter rim portion may be made from strips or bars of iron or steel rolled out into the desired transverse torni and .bent circularly by weli known prccesses, the sections being formed by cutting the same across at 'the desired points, and that `the inner rim portion may be inadeoi? ordinary iict iron bars, similarly bent and cut, the tongues and ears for the connecting pivots being readilyA formed at the time ofthe cutting operation.4

The'inner rini portion, as thus arranged, extends continuously 'about 4'the'4 inner pe riphery of the outer rim portion, providing a continuous surface corresponding to the periphery or the Wheel on. r'hich it is be placed, and reinforces the outer portion 4very substantially. At the same time, it also pro vides a 'convenient and effective means tcl' enabling the practical production of a rim` embodying the features of my said prior inventioin I claim 1. A collapsible rim comprising a plurality of tirereceiving rim sections having abutting ends, and an inner rim disposed on lthe inner periphery of said sections, rigidly connected thereto and composed of sections pivotally engaged adjacent the abutting lSends of said tire-receiving sections. 2. A collapsible rim vcoingrising a piurality ot tire-receiving rim'sectionsv having abutting ends and an inner rirn consisting of pivotally connected sections of uniform thickness disposed on the inner periphery ci? said tire-receiving sections, each tire-receiv ing section having a section of said inner rim rigidly connected thereto.

3. A collapsibley rim composed ot a pluralit'yl of sections having abutting ends, .each

aan

rim-portion'secured to itsinner peripheral Y surface, the inner ri1n-portion stone ofjsaid main sectionshavlng 'a pitotallyV nini/able endfsection, to ther tree end ci ndi. the in ner nini-portion of said complementari sec= 13@ vlinnerj peripheral face of the,l outer rim Por '.51 13.1011? s .L l

5-. collapsible rimcomps'ed of pail.

of;` main" sections and aA complemental sec .tibmyeachof said sections comprising a tirereceiving outer rui-portionhaving 'enfin-I -10 ner rmi-portlon secured to its inner periph* `ered, surface, the inner riniportion of' said complemental section being extended beyond theends of the outer rimportio'nthereof to engage the .inner peripheral faces Aoithe. cor- .lrespmidng outer'rin portions of the main' Sections, the" adjacent end portion of the finner rim-portion of one of the main sections being pivotally engagefhat one end, `to the adjacent extended end of said inner 20 .rim-portion and at its oppositeend to' the name to specication.

l aajacentportion of the inner rlm portion of said main section. .Y

'6. TA. collapsible rim comprising a plurality of tire-receiving outer rim sections hav,- ing .abutting ends, an inner rim sectiomsecured to the inner peripheral side of one of said outer sections and extended therefrom to overlap thejoint between the same and the other outer section, the overlapping portions of s ald outer and inner sectionsfhaviig a corresponding lug and aperture adapted and 4arranged to be inter-engaged when said sections are in normal position to hold lthe same against longitudinal separatio .1,

In testimony whereof,A I have sig d my .TIMOTHY S. YORK.

Witness:

Y L. H. HARRIMAN. 

